My favourite cleansing oil is Fancyl, but last year when I ran out I looked for a cheaper alternative that I could buy locally, and found the Muji cleansing oils. I have since used two of them: the sensitive one (first ingredient olive oil and the one shown in the picture above) and another one (first ingredient hydrogenated polyisobutene) - I'm not sure if it's the 'mild' or the 'normal' one. This review is for anyone curious/confused about the differences between them, because they are significant:
Muji sensitive (olive-oil based): slighter darker colour and thicker than the other oil so a bit harder to spread around your face, it emulsifies well but isn't as effective at removing really stubborn waterproof makeup. The upside is that it's very gentle and non-drying, and my skin is hydrated and happy with it. I've been through a whole bottle with no problems whatsoever.
Muji non-sensitive (hydrogenated polyisobutene one): lighter, more fluid, as effective as Fancyl at removing stubborn waterproof makeup, but (unlike Fancyl) this stuff is drying and sensitises my skin over time. Last winter, after using this for several weeks (it was OK at first) my skin became so sensitive that it reacted to everything I put on it, including (in the end) water. It was so dry it starting peeling. I do have slightly sensitive skin but it has never reacted like this before. I didn't realise it was the oil and spent a small fortune changing all my other skin care to fix the problem, thinking it was just my age or the dry winter weather - finally I changed to the sensitive oil in desperation and my skin started to recover straight away. A few weeks ago I tried the non-sensitive one again because I had run out of the sensitive one, and again it was fine at first, but this week I noticed my eyes were getting irritated, and my skin has started reddening with products it was previously fine with. It's going in the bin!
Bottom line, Fancyl is my pick for most effective oil without irritation, but the Muji sensitive is great if you don't wear a lot of waterproof makeup and/or have sensitive skin. Avoid the other Muji one!